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Finding the Fourth Proportional to 71,694.73, 107,479.20 and 27,291.94

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Solution

The fourth proportional to 71,694.73, 107,479.20 and 27,291.94 is: 40,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,694.73 : 107,479.20 = 27,291.94 : x
  2. Step 2: Convert to fraction form
    71,694.73/107,479.20 = 27,291.94/x
  3. Step 3: Cross multiply
    71,694.73x = 107,479.20 × 27,291.94
  4. Step 4: Simplify right side
    71,694.73x = 2,933,315,877.65
  5. Step 5: Solve for x
    x = 2,933,315,877.65/71,694.73
  6. Step 6: Final answer
    x = 40,913.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.